[Eeglablist] EEGlab pop_chanedit() warning

Makoto Miyakoshi mmiyakoshi at ucsd.edu
Tue Feb 18 18:32:29 PST 2014


Dear Soumajyoti,

Sorry for delayed response.
I agree with Arno.  The output for pop_chanedit() should be EEG structure
as help shows. Could you try it without .chanlocs?

Makoto


2014-02-14 20:45 GMT-08:00 Arnaud Delorme <arno at salk.edu>:

> Dear Soumajyoti,
>
> try instead
>
> rawInputEEG =pop_chanedit(rawInputEEG, 'load',{ electrode_filename,
> 'filetype', 'locs'});
>
> or
>
> rawInputEEG.chanlocs= readlocs(electrode_filename);
> rawInputEEG = eeg_checkset(rawInputEEG);
>
> Arno
>
> On Jan 30, 2014, at 11:53 AM, Soumajyoti Sarkar <ergy.ergy at gmail.com>
> wrote:
>
> > Hi All,
> >          Thanks for helping me out. Here is what I have done so far:
> >
> > i) I copied the entire 'sample_data' from eeglab to a folder 'D:\myeeg'.
> > ii) I copied the necessary functions from eeglab to the folder D:\myeeg
> that are required for pop_loadset and pop_chanedit.
> > iii) Then I set the path of this folder myeeg in Matlab and executed the
> following lines
> >
> > filename = 'd:\myeeg\sample_data\eeglab_data.set';
> > raw_data = 'd:\myeeg\sample_data\eeglab_data.fdt';
> > rawInputEEG=pop_loadset(filename);
> > electrode_filename='d:\myeeg\sample_data\eeglab_chan32.locs';
> > rawInputEEG.chanlocs=pop_chanedit(rawInputEEG.chanlocs, 'load',{
> electrode_filename, 'filetype', 'locs'});
> >
> > The pop_loadset() function worked properly but after  the last line
> (pop-chanedit) the following warning is displayed
> >
> > Warning: channel labels should not be empty, creating unique labels
> > Warning: coordinate conversion failed
> >
> > Hope you'll can help me out.
> >
> >
> > Thanks.
> >
> >
>
>
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-- 
Makoto Miyakoshi
Swartz Center for Computational Neuroscience
Institute for Neural Computation, University of California San Diego
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